Transmission Input Speed (RPM) Sensor G182, Checking

Transmission Input Speed (RPM) Sensor G182, checking
(for 6-Speed Automatic Transmission 09A with Tiptronic)

Special tools, testers and auxiliary items required
- Multimeter
- Wiring diagram

Requirements
- The Transmission Input Speed (RPM) Sensor G182 fuse OK.
- The battery voltage must be at least 12.5 Volts.
- All electrical consumers must be switched off.
- The parking brake must be engaged.
- The elector lever must be in the "P" position.
- The Ground (GND) connections to transmission must be OK.

Test procedure
- Perform a preliminary check to verify the customers complaint.

Start diagnosis






- Disconnect the Transmission Input Speed (RPM) Sensor G182 electrical harness connector - 2 -.
- Check the electrical harness connector for damage, corrosion, lose or broken terminals.
- Repair any damage found to the electrical harness connector.

If the electrical harness connector is not OK:
- Repair the malfunction.

If the electrical harness connector is OK:

Checking wiring

If the manufacturers test box is being used. Perform the following step.
- Install the test box Test Box 105 Pin VAG1598/31.

If the manufacturers test box is not being used. Perform the following step.
- Remove the Transmission Control Module (TCM) J217.






- Using a multimeter, check the Transmission Input Speed (RPM) Sensor G182 electrical harness connector terminals to the Transmission Control Module (TCM) J217 electrical harness connector T68a terminals for an open circuit.






Specified value: 1.5 Ohms Max.

If the specification was not obtained:
- Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was not OK:
- Replace the Transmission Input Speed (RPM) Sensor G182.

If no malfunction is found in the wiring and the resistance was OK:
- Erase the DTC memory. Diagnostic Mode 4: Reset/Erase Diagnostic Data
- Perform a road test to verify repair.

If the DTC does not return:
Repair complete, Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
- End diagnosis.

If the DTC does return and no malfunction is detected in the wiring and the Transmission Input Speed (RPM) Sensor G182 was OK:
- Replace the Transmission Control Module (TCM) J217.

Final procedures
1. Check the DTC memory.
2. If necessary, erase DTC memory of the Transmission Control Module (TCM) J217.
3. If the DTC memory was erased, generate readiness code.

End diagnosis